What’s the last song you re-listened to obsessively?

I keep going back to this one track from a wedding I did last month—nothing fancy, just a slow version of 'Stand by Me' with a cello line that made two people cry in the same hour. Not even sure if it was the song or the way the light hit the dance floor at 8:47 PM. Anyway, I’ve played it five times since, not for the crowd, but for me. What’s something you’ve replayed like that? Something that didn’t make sense on paper but still got under your skin?